Oversized Black Streetwear Blazer: Tailoring with City Attitude
Meet the oversized black blazer jacket that makes getting dressed feel instantly more intentional. With its strong shoulder line, elongated shape, and clean single-button front, this piece brings the confident polish of classic tailoring into a modern streetwear wardrobe. It is equal parts downtown minimalism, Seoul-inspired styling, and off-duty power dressing.
Black blazers have long moved beyond the office. In Korean and East Asian street style, an oversized tailored jacket is often styled as a contrast piece: worn over bare legs, relaxed trousers, a tiny top, or a graphic tee to balance soft, casual, and structured elements. This blazer makes that look easy—sharp enough for plans, relaxed enough for everyday movement.
Designed for a Strong, Relaxed Silhouette
The matte black finish keeps the look refined and versatile, while broad padded shoulders create a confident architectural frame. A notched lapel and deep V opening draw the eye vertically, complementing the longline cut. Its easy, relaxed fit gives you room to layer without losing the clean tailored effect.
- Oversized streetwear tailoring: A long, relaxed blazer shape with a contemporary borrowed-from-the-boys attitude.
- Structured shoulders: Light shoulder padding adds definition and a powerful silhouette.
- Single-button front: A minimalist closure that can be worn open for ease or fastened for a more polished finish.
- Classic lapel neckline: Creates a sharp V-shaped line that works with tees, camisoles, shirts, and knitwear.
- Versatile solid black: An essential neutral for monochrome outfits, Y2K-inspired styling, and understated capsule wardrobes.
- Functional pocket detail: Side flap pockets reinforce the blazer’s tailored, city-ready character.
How to Style This Black Oversized Blazer Jacket
For a clean Seoul streetwear look, pair it with tailored shorts, white socks, and chunky loafers. Create a sleek monochrome set with wide-leg black trousers and a fitted tank. For a more casual Acubi-inspired contrast, wear it over a ribbed mini dress or cropped tee with distressed denim and sneakers. Add silver jewelry, narrow sunglasses, or a compact shoulder bag to push the look toward modern downtown styling.
This long black blazer transitions naturally from weekday meetings and creative studios to dinner reservations, city walks, gallery visits, and travel days. Its relaxed structure gives a simple outfit an elevated finish without looking overly formal.
Product Details
| Color | Black |
| Composition | 100% Polyester Fiber |
| Design | Plain / solid color |
| Style | Casual streetwear tailoring |
| Thickness | Regular |
| Sleeve Length | Long sleeve |
| Length | Long top |
| Stretch | Some stretch |
| Fit | Relaxed oversized silhouette |
| Occasion | Leisure, city wear, work, evenings out |
Black Blazer Jacket Size Chart
Garment measurements are listed in centimeters and inches. For an intentional oversized fit, select your usual size. If you prefer a closer, more tailored look, compare the measurements carefully with a blazer you already own.
| Size | Length | Shoulder | Bust | Waist | Hem | Sleeve Length | Sleeve Cuff |
|---|---|---|---|---|---|---|---|
| S | 74.5 cm / 29.3 in | 45 cm / 17.7 in | 84 cm / 33.1 in | 74 cm / 29.1 in | 102 cm / 40.2 in | 60 cm / 23.6 in | 29 cm / 11.4 in |
| M | 76 cm / 29.9 in | 46 cm / 18.1 in | 88 cm / 34.6 in | 78 cm / 30.7 in | 106 cm / 41.7 in | 61 cm / 24.0 in | 30 cm / 11.8 in |
| L | 77.5 cm / 30.5 in | 47 cm / 18.5 in | 92 cm / 36.2 in | 82 cm / 32.3 in | 110 cm / 43.3 in | 62 cm / 24.4 in | 31 cm / 12.2 in |
Body Measurement Reference
The following body measurement guide is provided in inches, with centimeter conversions added for convenience. Available product sizes are S, M, and L.
| Size | Hips | Bust | Waist |
|---|---|---|---|
| XS | 34–36 in / 86.4–91.4 cm | 32–34 in / 81.3–86.4 cm | 24–26 in / 61–66 cm |
| S | 36–37.5 in / 91.4–95.3 cm | 34–35.5 in / 86.4–90.2 cm | 26–27.5 in / 66–69.9 cm |
| M | 37.5–39 in / 95.3–99.1 cm | 35.5–37 in / 90.2–94 cm | 27.5–29 in / 69.9–73.7 cm |
| L | 39–41.5 in / 99.1–105.4 cm | 37–39.5 in / 94–100.3 cm | 29–31.5 in / 73.7–80 cm |
| XL | 41.5–44 in / 105.4–111.8 cm | 39.5–42 in / 100.3–106.7 cm | 32–34 in / 81.3–86.4 cm |
Fit note: Model is 163 cm / 5 ft 4 in and wears size S. Measurements are taken by hand and may vary by 2–3 cm (approximately 0.8–1.2 in). 1 in = 2.54 cm. The size shown on the garment label may differ from the size ordered.
Care Tips
To help preserve the blazer’s clean shape and structured shoulder line, dry clean when possible. If washing is necessary, use a gentle cold cycle, turn the garment inside out, and hang dry. Steam lightly rather than applying direct high heat to the fabric.
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